Black Holes

Extract

[...] 3 Mass Angular momentum electrical charge Conclusion True or false ? The existence of black holes raised the question that time would be slowed down in a black hole and raised the question of the existence of wormholes. Conclusion True The existence of black holes raised the question that time would be slowed down in a black hole and raised the question of the existence of wormholes. Conclusion Major advances Operation Existence Conclusion “The first enemy of knowledge is not ignorance, it is the illusion of knowledge.” —Stephen Hawking Thanks if you want to turn you into spaghetti you now know where to go . [...]

[...] < solar masses Hypothesis : object accretion Categories and formation Primordial Black Holes Hypothetical Formation Weight After the Big Bang < 10 solar masses 04 Properties Properties Hundreds parameters chemical composition, temperatures, convection, atmosphere parameters Properties No-air theorem ● Werner Israel ● Fundamental long reach interactions Gravitation Electromagnetism Properties Three parameters Mass Angular momentum Electrical charge Elementary particle 05 Observation and detection Observation and detection Observation and detection Observation and detection Observation and detection Observation and detection Observation and detection Matter and gazes Observation and detection Accretion disk Observation and detection X and gamma rays Quasar E = 10¹² suns Observation and detection Thermal obersvation Raised questions Raised questions Space time Raised questions Space time Raised questions Space time The Slowing down of time Space time + γ increases + time slows down The Slowing down of time Space time → c → 0 → +∞ + γ increases + time slows down The Slowing down of time The wormholes The wormholes The wormholes The wormholes The wormholes Wormhole The wormholes Wormhole The wormholes Wormhole The wormholes The wormholes The wormholes “Spaghettification” The wormhole “Spaghettification” 07 Conclusion Conclusion Conclusion Conclusion How many kinds of black holes exist ? Conclusion How many kinds of black holes exist ? 4 Primordial Stellar Intermediate Supermassive Conclusion How many parameters are needed to describe a black hole ? Conclusion How many parameters are needed to describe a black hole ? [...]

[...] Black hole ? Effects on the Universe ? Formation ? Table of Contents 01 Historical 05 Observation and detection 02 Definition 06 Raised questions 03 Categories and formation 07 Conclusion 04 Properties 01 Historical Historical John Michell Pierre-Simon Laplace Black holes' concept 18th Albert Einstein Siegmund Schwarzschild General relativity Research begins The Schwarzschild ray 20th 1916 Historical John Wheeler Proof of black holes' existence 60s “Black hole” term is introduced 1967 The 1st black hole is discovered 1971 Historical Formation of black holes 1st real picture Still in progress 02 Definition Définition Définition Gravitational well Définition G : gravitational constant m1, m2 : objects mass r : distance between the two objects Gravitational force Définition G : gravitational constant M : objects mass r : distance between the two objects Escape velocity Définition Escape velocity 11 km/s Définition Vlib > c Dense Définition Définition Définition Définition Définition Events horizon Définition Events horizon Events horizon Définition Gravitational Singularity Définition Gravitational Singularity Définition Gravitational Singularity Définition Events horizon Gravitational Singularity Définition Quantum effects Hawking radiation Définition 03 Categories and formation Categories and formation Stellar Black Holes Formation Weight Collapse of massive stars 10 < . [...]